Barry County area

Barry County, Missouri covers 790.8 square miles: 778.1 square miles of land and 12.7 square miles of water. Its county seat is Cassville. An estimated 36,200 people lived there in 2025.

Official Census measurements · GEOID 290092026 Gazetteer · retrieved September 27, 2026
Land area778.1 mi²
Water area12.7 mi²
Population (2025)36,200
People per mi²47

County outline

Generalized outline of Barry County, Missouri
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Barry County is located

Barry County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 98.4% of Barry County’s measured area and water for 1.6%. Its combined area converts to 2,048.2 square kilometers or approximately 506,131 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land778.1232,015.329497,998.7
Water12.70732.9118,132.5
Total790.832,048.24506,131.2

How Barry County compares

By original Census land area, Barry County ranks #15 of 115 in Missouri and #1115 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.314 times the Missouri county-equivalent median of 592 square miles. It accounts for 1.1% of the combined county land area in the state.

See the complete Missouri ranking · What counts as a county equivalent?

Population and density of Barry County

The Census Bureau estimates that 36,200 people lived in Barry County on July 1, 2025. That ranks #1,322 of 3,222 county equivalents nationally and #34 of 115 in Missouri. Since the April 1, 2020 estimates base of 34,536, the population has grown by 1,664 (+4.8%), compared with +1.9% for Missouri as a whole.

With 778.1 square miles of land, that is 47 people per square mile (18 per km²), placing Barry County #1,621 nationally for density and #40 in Missouri. The median county equivalent has 47 people per square mile; the Missouri median is 31. Put another way, there are about 14 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate34,54934,77834,96835,37335,73036,200
Change—+229+190+405+357+470

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Barry County

12 incorporated places lie at least partly in Barry County. Together they are home to 14,581 people (40.3%); the other 21,619 (59.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Monett city, with 6,568 residents in the county (the city extends into 1 other county). The county seat, Cassville city, has 3,301 residents. Among places with at least 1,000 residents in 2020, Monett city grew fastest since then (+6.9%).

Incorporated placePopulation 2025Since 2020Land mi²
Monett cityAlso in 1 other county6,568+6.9%8.787
Cassville cityCounty seat3,301+3.5%3.423
Purdy city1,062+3.2%0.643
Seligman city951+19.3%1.244
Exeter city765+3.8%0.736
Wheaton city693+7.1%0.52
Butterfield city420+8.2%0.463
Washburn city408+4.1%0.9
Emerald Beach village226+10.8%0.716
Chain-O-Lakes village107+2.9%0.084
Arrow Point village80+5.3%0.191
Pierce City cityAlso in 1 other county0—1.29

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Barry County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Barry County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

18 ZIP Code Tabulation Areas have land in Barry County; 12 of them have most of their land inside the county, and the others mainly cover neighboring areas.

648426487465605656236562465625656336564165647656566565865708657236573465745657476576965772

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Barry County

Barry County shares a land border with 6 county equivalents, including 2 in Arkansas. It has more land than 5 of them. The largest neighbor is Benton County (847.7 mi²) and the smallest is Stone County (463.8 mi²). Together with its neighbors, Barry County forms a block of 4,495.6 mi² of land, of which it holds 17.3%.

Map of Barry County and the 6 county equivalents that border it Stone County, Missouri: 463.8 mi² landLawrence County, Missouri: 611.8 mi² landMcDonald County, Missouri: 539.4 mi² landCarroll County, Arkansas: 629.9 mi² landNewton County, Missouri: 624.8 mi² landBenton County, Arkansas: 847.7 mi² land
Barry County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. BarryCompare
Benton CountyArkansas847.71.1× largerCompare
Carroll CountyArkansas629.91.2× smallerCompare
Newton County624.81.2× smallerCompare
Lawrence County611.81.3× smallerCompare
McDonald County539.41.4× smallerCompare
Stone County463.81.7× smallerCompare

How big is Barry County compared with U.S. states?

Barry County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.3 times as much. Missouri’s county land could hold about 88 areas the size of Barry County.

Land area: Barry County and the closest-sized states
Barry County778.1 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 27.9 miles (44.9 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Barry County?

Barry County has more land than 2,107 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Barry County778.1 mi²
Missouri median592 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Barry County at #1,205 nationally by total area, 90 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 1.6%, compared with a national county-equivalent median of 1.2% — 0.4 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Barry County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1114Onondaga County, New York778.4Compare
#1115Barry County, Missouri778.1This county
#1116Copiah County, Mississippi777.3Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 36.699376, -93.834334. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 2,015,328,972 m²; AWATER: 32,910,381 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Barry County?

Barry County, Missouri has 778.1 square miles (2,015.3 km²) of land and 12.7 square miles of water, for a total area of 790.8 square miles. It ranks #1115 of 3,222 U.S. county equivalents by land area.

Is Barry County the largest county in Missouri?

No. Barry County ranks #15 of 115 in Missouri by land area. The largest is Texas County, with 1,177.3 square miles of land.

What counties border Barry County?

Barry County shares a land border with Stone County, Lawrence County, McDonald County, Carroll County, Arkansas, Newton County, and Benton County, Arkansas.

What is the population of Barry County?

The Census Bureau estimates Barry County had 36,200 residents on July 1, 2025, ranking #1,322 of 3,222 county equivalents. That is 47 people per square mile of land.

What is the county seat of Barry County?

The county seat of Barry County is Cassville.

What cities and towns are in Barry County?

Barry County has 12 incorporated places. The most populous five are Monett city, Cassville city, Purdy city, Seligman city, and Exeter city; 21,619 residents live outside any incorporated place.

Is Barry County part of a metropolitan area?

No. Barry County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Barry County?

18 ZIP Code Tabulation Areas have land in Barry County, and 12 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Barry County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.3 times as much land.

How many acres of land are in Barry County?

The land measurement converts to approximately 497,999 acres. Including water, total area is approximately 506,131 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

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